EP1289143A3 - Filtre numérique récursif à cadence d'échantillonnage variable - Google Patents

Filtre numérique récursif à cadence d'échantillonnage variable Download PDF

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Publication number
EP1289143A3
EP1289143A3 EP02254993A EP02254993A EP1289143A3 EP 1289143 A3 EP1289143 A3 EP 1289143A3 EP 02254993 A EP02254993 A EP 02254993A EP 02254993 A EP02254993 A EP 02254993A EP 1289143 A3 EP1289143 A3 EP 1289143A3
Authority
EP
European Patent Office
Prior art keywords
sample rate
initial
digital filter
filter coefficient
new
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02254993A
Other languages
German (de)
English (en)
Other versions
EP1289143A2 (fr
EP1289143B1 (fr
Inventor
Kevin M. Ferguson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tektronix Inc
Original Assignee
Tektronix Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tektronix Inc filed Critical Tektronix Inc
Publication of EP1289143A2 publication Critical patent/EP1289143A2/fr
Publication of EP1289143A3 publication Critical patent/EP1289143A3/fr
Application granted granted Critical
Publication of EP1289143B1 publication Critical patent/EP1289143B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0294—Variable filters; Programmable filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters
    • H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Picture Signal Circuits (AREA)
  • Image Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
EP02254993A 2001-08-08 2002-07-16 Filtre numérique récursif à cadence d'échantillonnage variable Expired - Lifetime EP1289143B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/925,546 US6976045B2 (en) 2001-08-08 2001-08-08 Variable sample rate recursive digital filter
US925546 2001-08-08

Publications (3)

Publication Number Publication Date
EP1289143A2 EP1289143A2 (fr) 2003-03-05
EP1289143A3 true EP1289143A3 (fr) 2005-05-04
EP1289143B1 EP1289143B1 (fr) 2008-12-17

Family

ID=25451883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02254993A Expired - Lifetime EP1289143B1 (fr) 2001-08-08 2002-07-16 Filtre numérique récursif à cadence d'échantillonnage variable

Country Status (5)

Country Link
US (1) US6976045B2 (fr)
EP (1) EP1289143B1 (fr)
JP (1) JP4159318B2 (fr)
CN (1) CN100592627C (fr)
DE (1) DE60230372D1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7158591B2 (en) * 2001-05-09 2007-01-02 Signum Concept, Inc. Recursive resampling digital filter structure for demodulating 3G wireless signals
US7405747B2 (en) * 2004-04-14 2008-07-29 Tektronix, Inc. Extended K2T measurement of video
US7685216B2 (en) * 2005-07-07 2010-03-23 Texas Instruments Incorporated Automatic input error recovery circuit and method for recursive digital filters
JP4563310B2 (ja) * 2005-12-01 2010-10-13 パナソニック株式会社 無線受信機
CN100463367C (zh) * 2007-03-12 2009-02-18 北京航空航天大学 一种章动频率自动跟踪的高通数字滤波方法
US8781222B2 (en) 2008-12-12 2014-07-15 Tektronix, Inc. Method and apparatus for automatic illuminant compensation in video surveillance
CN101800845B (zh) * 2010-01-06 2013-05-22 北京中科大洋科技发展股份有限公司 一种可调节的基于光滑曲线的频域滤波器设计方法
CN102647168B (zh) * 2010-10-28 2015-01-14 矽统科技股份有限公司 动态滤波装置及其方法
US8849883B2 (en) * 2011-03-23 2014-09-30 Analog Devices, Inc. Method and apparatus for adaptive control of the decimation ratio in asynchronous sample rate converters
US20130103283A1 (en) * 2011-10-19 2013-04-25 Delphi Technologies, Inc. Digital filter for an event driven engine controller having a variable sample rate
US8917932B2 (en) 2011-12-29 2014-12-23 Tektronix, Inc. Method of predicting perceptual differences between memory and directly viewed colors in video
WO2014130575A1 (fr) * 2013-02-19 2014-08-28 Tektronix, Inc. Cadre d'aspect d'image et applications pour la création et l'affichage d'images numériques
WO2014179489A1 (fr) * 2013-05-01 2014-11-06 Starkey Laboratories, Inc. Coefficients d'annulation de retour adaptative basés sur la tension
CN103873016B (zh) * 2014-02-24 2016-09-21 北京遥测技术研究所 一种任意采样率变换数字重构滤波器系数设计方法
US10045050B2 (en) * 2014-04-25 2018-08-07 Vid Scale, Inc. Perceptual preprocessing filter for viewing-conditions-aware video coding
DE102017212715B3 (de) * 2017-07-25 2019-01-31 Robert Bosch Gmbh Verfahren zum Verarbeiten von kontinuierlichen Sensorsignalen und Sensorsystem
CN112865753B (zh) * 2020-12-28 2023-04-07 珠海格力电器股份有限公司 一种滤波系数调整方法、装置、存储介质及滤波器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797845A (en) * 1985-12-18 1989-01-10 U.S. Philips Corporation Phase-locked loop coefficient generator for a filter arrangement having a non-rational ratio between input and output sampling frequencies
EP1095450A1 (fr) * 1998-06-30 2001-05-02 Infineon Technologies AG Filtre numerique non recursif et procede de calcul des coefficients de ce filtre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07307629A (ja) * 1994-05-11 1995-11-21 Asahi Kasei Micro Syst Kk トーンコントロール回路
US5928313A (en) * 1997-05-05 1999-07-27 Apple Computer, Inc. Method and apparatus for sample rate conversion
US6134570A (en) * 1997-05-12 2000-10-17 Level One Communications, Inc. Method and apparatus for efficient implementation of a multirate LMS filter
KR100244767B1 (ko) * 1997-06-25 2000-02-15 전주범 디지탈 자기 기록/재생 시스템의 선택적 동기/비동기 부분 응답 채널 데이터 검출 장치
US6310919B1 (en) * 1998-05-07 2001-10-30 Sarnoff Corporation Method and apparatus for adaptively scaling motion vector information in an information stream decoder
US6531970B2 (en) * 2001-06-07 2003-03-11 Analog Devices, Inc. Digital sample rate converters having matched group delay

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797845A (en) * 1985-12-18 1989-01-10 U.S. Philips Corporation Phase-locked loop coefficient generator for a filter arrangement having a non-rational ratio between input and output sampling frequencies
EP1095450A1 (fr) * 1998-06-30 2001-05-02 Infineon Technologies AG Filtre numerique non recursif et procede de calcul des coefficients de ce filtre

Also Published As

Publication number Publication date
CN1407720A (zh) 2003-04-02
JP4159318B2 (ja) 2008-10-01
US20030031281A1 (en) 2003-02-13
EP1289143A2 (fr) 2003-03-05
CN100592627C (zh) 2010-02-24
EP1289143B1 (fr) 2008-12-17
US6976045B2 (en) 2005-12-13
JP2003133909A (ja) 2003-05-09
DE60230372D1 (de) 2009-01-29

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